Pad for pressing machines



April 10, 1928. 1,665,654

P. N. BRAUN ET AL PAD FOR PRESSING MACHINES Filed Aug. 5. 1924 INVENTOR.

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' fauna A r. 10, 1928.

UNITED STATES PATENT orrica.

mm: IN. BRAU'N AND smnon '1. mm, or smcosn," new man, essreuons, BY mnsnn assrermnms, TO THE PROSPERITY COMPANY, me, or svnacusn, NEW

YORK, A CORPORATION OF NEW YORK.

mn non rnnssme nscnmns.

Application filed August}, 1924. Serial No. 730,811.

This invention relates to ads, such as are used on garment and laun ry platen pressing'machines, and has for its ob ect a pad having a sheet metal fiexlble plate forming the top wall of a chamber' confining a compressible fluid as air. p

v i The invention conslsts 1n the novel features and in the combinations and constructions hereinafter set forth and claimed.

In describing this invention, reference is had to the accompanying drawings in which like characters designate corresponding parts in all the views. l Figure 1 is an elevation of this pad.

Figure 2 is an elevation similar to Fig. 1,

showing the pad compressed. I

Figure 3 is a cross sect'onal view of Fig. 1. I Figure 4 is an elevation of one form of praising machine with which the pad is use This invention comprises a pad which crushes or expands outwardly under pressure and, the pad, comprises generally, a base plate which is substantially rigid, a flexlble top plate preferably of sheet metal spaced apart from the base plate and secured at 1ts margins to the base plate in such a manner as to permit the plate to expand laterally in all directions, the plates confining a sealed chamber for receiving a compressible fiuid as air.

1 designates the rigid base plate which is preferably of metal.

2 designates the top plate which is spaced apart from the base plate and normally bulges outwardly, this top plate being secured to the base plate so as to expand or crush outwardly under pressure. A's here shown, the entire orcircumferential margin of the to plate is folded in a rounded curve outwar y as at 3, beyond the edge of the base plate and then inwardly at 4 and secured to the plate 1, the margin 4 thereof being prefera ly arranged in a circumfer= vential groove, opening through the edge of the late 1. The. margin 4 is suitably sealed in t e groove of the base plate and the provided with an inlet valve at 5 for a compressible medium as air, this valve extending through the base plate 1. If desired an air bag 6 may be placed in the chamber confined by the plates.

In 0 eration, when pressure is applied to the pa owing to its flexibility, it can'conform to the difierent thicknesses of portions of the work being 0 erated upon and 1n so doing expands lateral y under pressure.

This pad is placed on the lower buck 7 of a presslng machine which also includes a. head 8 movabletoward and from the pad on the buck 7 this head 8 being carried by a suitable yoke or lever 9 pivoted between its ends at 10 to a standard 11 rising from the frame 12 of the machine and the ressure is applied to the head 8 through t e yoke 9 from a suitable power shaft 13' actuated intermittently from an electric motor 13", the power of the shaft being transferred from the shaft 12 through a cam 14 on the shaft,

a power lever 15 pivoted at 16 to the frame, a to gle including links 17 and 18, which togg e is actuated from the lever 15 through a thrust link 19.

The head is opened, when relieved of the power by a suitable counter weight 20.

The buck? and head 8 are usually oblong in general form with tapering sides and roundin ends, and the ad conforms to the outline of the buck an head. Also the buck and head may have fiat faces or convex and concave faces respectively.

The construction of the machine forms no part of this invention. It will be borne in mind, however, that a pad in a pressing machine is called upon to o erate differently from other cushioning an padding devices, as pressure is ap lied throughout the area of the pad, and t is pressure, owin to the difierent thicknesses of portions of the work varies on diilerent parts of the pad. Owing to the fact that the pad crushes or expands outwardly in all directions the pressure is equalized or distributed through the pad, and this pad is particularly operable in the machine shown 1n Fig. 4.

What we claim is:

A pad for pressing machines, comprisi a base plate, and a flexiblemetal top late spaced apart from the base plate, an se signed our names,' at Syracuse, in the cured at its margin to the base plate, the count of Onondaga, and in the State of 10 plates confining a sealed chamber, the top New ork, this 1st day of August, 1924.

5 plate normally bulging upwardly and the a margins bulging outwardly to expand later PHILIP N. BRAUN. ally as the pad is compressed. SIMEON T. HART.

In testimony 'whereof, we have hereunto 

